Please suggest a universal video format converter to avi. There are many different format video clips (mp4, wmv, mkv, mov, flv) which I must for archive compatibility convert to some standard video. There are many commercial shareware product, which claim to convert everything but I have tried and in fact no one doesn't seem to be fully functional. To tell the truth - these often feel like scams, trying to sell freeware. Please share your experiences and suggest some software names - free or shareware. Thank you.